+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-2673 | |||||||||
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タイトル | Cryo-EM map of CAP-Gly-microtubule complex | |||||||||
マップデータ | Reconstruction of microtubule with p150glued(1-105) - amplitude corrected to visualise the decoration. | |||||||||
試料 |
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キーワード | microtubule (微小管) / dynactin (ダイナクチン) / +TIPs / p150 / CAP-Gly | |||||||||
機能・相同性 | 機能・相同性情報 positive regulation of neuromuscular junction development / centriolar subdistal appendage / cell cortex region / centriole-centriole cohesion / ventral spinal cord development / microtubule anchoring at centrosome / maintenance of synapse structure / melanosome transport / nuclear membrane disassembly / microtubule plus-end ...positive regulation of neuromuscular junction development / centriolar subdistal appendage / cell cortex region / centriole-centriole cohesion / ventral spinal cord development / microtubule anchoring at centrosome / maintenance of synapse structure / melanosome transport / nuclear membrane disassembly / microtubule plus-end / positive regulation of microtubule nucleation / XBP1(S) activates chaperone genes / dynein complex / COPI-independent Golgi-to-ER retrograde traffic / non-motile cilium assembly / retrograde transport, endosome to Golgi / nuclear migration / microtubule associated complex / motor behavior / neuromuscular process / neuromuscular junction development / 細胞結合 / cell leading edge / establishment of mitotic spindle orientation / Signaling by ALK fusions and activated point mutants / COPI-mediated anterograde transport / regulation of mitotic spindle organization / positive regulation of microtubule polymerization / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Recruitment of mitotic centrosome proteins and complexes / Recruitment of NuMA to mitotic centrosomes / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / Anchoring of the basal body to the plasma membrane / MHC class II antigen presentation / neuron projection maintenance / 中心小体 / tubulin binding / AURKA Activation by TPX2 / ciliary basal body / tau protein binding / 紡錘体 / spindle / 動原体 / 紡錘体 / neuron cellular homeostasis / microtubule cytoskeleton / Regulation of PLK1 Activity at G2/M Transition / mitotic cell cycle / 核膜 / nervous system development / 細胞皮質 / microtubule binding / 微小管 / neuron projection / 細胞分裂 / 神経繊維 / 中心体 / neuronal cell body / protein kinase binding / 生体膜 / 細胞質基質 / 細胞質 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) | |||||||||
手法 | らせん対称体再構成法 / クライオ電子顕微鏡法 / 解像度: 9.7 Å | |||||||||
データ登録者 | Wang Q / Crevenna AH / Kunze I / Mizuno N | |||||||||
引用 | ジャーナル: Proc Natl Acad Sci U S A / 年: 2014 タイトル: Structural basis for the extended CAP-Gly domains of p150(glued) binding to microtubules and the implication for tubulin dynamics. 著者: Qianmin Wang / Alvaro H Crevenna / Ines Kunze / Naoko Mizuno / 要旨: p150(glued) belongs to a group of proteins accumulating at microtubule plus ends (+TIPs). It plays a key role in initiating retrograde transport by recruiting and tethering endosomes and dynein to ...p150(glued) belongs to a group of proteins accumulating at microtubule plus ends (+TIPs). It plays a key role in initiating retrograde transport by recruiting and tethering endosomes and dynein to microtubules. p150(glued) contains an N-terminal microtubule-binding cytoskeleton-associated protein glycine-rich (CAP-Gly) domain that accelerates tubulin polymerization. Although this copolymerization is well-studied using light microscopic techniques, structural consequences of this interaction are elusive. Here, using electron-microscopic and spectroscopic approaches, we provide a detailed structural view of p150(glued) CAP-Gly binding to microtubules and tubulin. Cryo-EM 3D reconstructions of p150(glued)-CAP-Gly complexed with microtubules revealed the recognition of the microtubule surface, including tubulin C-terminal tails by CAP-Gly. These binding surfaces differ from other retrograde initiation proteins like EB1 or dynein, which could facilitate the simultaneous attachment of all accessory components. Furthermore, the CAP-Gly domain, with its basic extensions, facilitates lateral and longitudinal interactions of tubulin molecules by covering the tubulin acidic tails. This shielding effect of CAP-Gly and its basic extensions may provide a molecular basis of the roles of p150(glued) in microtubule dynamics. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_2673.map.gz | 614.6 KB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-2673-v30.xml emd-2673.xml | 9.7 KB 9.7 KB | 表示 表示 | EMDBヘッダ |
画像 | EMD-2673-11714_500.tiff | 509.5 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-2673 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-2673 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_2673.map.gz / 形式: CCP4 / 大きさ: 646.5 KB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | Reconstruction of microtubule with p150glued(1-105) - amplitude corrected to visualise the decoration. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 2.21 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-試料の構成要素
-全体 : Microtubule complexed with p150glued (1-105)
全体 | 名称: Microtubule complexed with p150glued (1-105) |
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要素 |
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-超分子 #1000: Microtubule complexed with p150glued (1-105)
超分子 | 名称: Microtubule complexed with p150glued (1-105) / タイプ: sample / ID: 1000 / 集合状態: One CAP-Gly bound to tubulin monomer / Number unique components: 1 |
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-分子 #1: p150glued, microtubule
分子 | 名称: p150glued, microtubule / タイプ: protein_or_peptide / ID: 1 / Name.synonym: dynactin1 / 集合状態: polymer / 組換発現: Yes |
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由来(天然) | 生物種: Homo sapiens (ヒト) / 別称: Human |
分子量 | 実験値: 10 KDa / 理論値: 10 KDa |
組換発現 | 生物種: Escherichia coli BL21(DE3) (大腸菌) / 組換株: Gold / 組換プラスミド: pEC vector |
配列 | UniProtKB: Dynactin subunit 1 / InterPro: CAP Gly-rich domain, Dynein associated protein |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | らせん対称体再構成法 |
試料の集合状態 | filament |
-試料調製
濃度 | 0.2 mg/mL |
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緩衝液 | pH: 6.8 / 詳細: 80 mM Pipes, 1 mM MgCl2, 1 mM EGTA |
グリッド | 詳細: 300 mesh Quantifoil grid, glow discharged |
凍結 | 凍結剤: ETHANE-PROPANE MIXTURE / チャンバー内湿度: 90 % / 装置: FEI VITROBOT MARK IV / 手法: Blot for 5 seconds with force 2, before plunging |
-電子顕微鏡法
顕微鏡 | FEI TECNAI 20 |
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電子線 | 加速電圧: 200 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 倍率(補正後): 67873 / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELDBright-field microscopy / 最大 デフォーカス(公称値): 3.0 µm / 最小 デフォーカス(公称値): 1.0 µm / 倍率(公称値): 50000 |
試料ステージ | 試料ホルダーモデル: GATAN LIQUID NITROGEN |
アライメント法 | Legacy - 非点収差: Objective lens astigmatism was corrected at 120,000 times magnification |
日付 | 2012年5月22日 |
撮影 | カテゴリ: CCD / フィルム・検出器のモデル: FEI EAGLE (4k x 4k) / 実像数: 220 / 平均電子線量: 20 e/Å2 |
-画像解析
CTF補正 | 詳細: Phases of individual images are flipped. |
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最終 再構成 | 想定した対称性 - らせんパラメータ - Δz: 2.98 Å 想定した対称性 - らせんパラメータ - ΔΦ: 129 ° 想定した対称性 - らせんパラメータ - 軸対称性: C1 (非対称) アルゴリズム: OTHER / 解像度のタイプ: BY AUTHOR / 解像度: 9.7 Å / 解像度の算出法: OTHER / ソフトウェア - 名称: Spider, EMAN, IHRSR, bsoft |
詳細 | The particles were aligned using SPIDER and helical symmetry was applied using IHRSR. |